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在iOS和iPadOS上安装此APP
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CSS Responsive Modal Images

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CSS Responsive Modal Images

Responsive Modal Image Gallery

A modal image gives a user the ability to display a larger version of an image, without navigating away from the current page. When a user clicks on a modal image, it shows a popup window that appears on top of the main content of the webpage, often with a semi-transparent background. The modal must be closed by the user, typically with a "close" button or an "X" sign in top-right corner.

This example demonstrates how to use HTML, CSS and JavaScript together, to create a responsive modal image gallery.

We use CSS to create a modal window (dialog box), and hide it by default.

Then, we use a JavaScript to show the modal window with the correct image inside, when a user clicks on the image:

Cinque Terre Forest Northern Lights Mountains

Example

<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

h1 {
  text-align: center;
  padding: 20px;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  padding: 0 15px;
}

.gallery-item {
  position: relative;
  width: calc(25% - 20px);
  height: auto;
  margin: 10px;
  cursor: pointer;
  transition: transform 0.5s ease;
}

.gallery-item:hover {
  transform: scale(1.1);
}

/* The Modal (background) */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease;
}

/* Modal content (image) */
.modal-content {
  position: relative;
  width: 90%;
  height: auto;
  max-width: 90%;
  max-height: 90%;
  border-radius: 5px;
  overflow: hidden;
  animation: zoomIn 0.5s;
}

@keyframes zoomIn {
  from {transform: scale(0.6);}
  to {transform: scale(1);}
}

.modal.show {
  display: flex;
  opacity: 1;
}

/* Close button */
.close {
  position: absolute;
  top: 10px;
  right: 15px;
  color: #ffffff;
  font-size: 35px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.3s;
}

/* Caption of modal image */
.caption {
  position: absolute;
  bottom: 15px;
  width: 100%;
  text-align: center;
  color: #ffffff;
  font-size: 24px;
}

@media screen and (max-width: 768px) {
  .gallery-item {
    width: calc(50% - 20px);
  }
}

@media screen and (max-width: 480px) {
  .gallery-item {
    width: calc(100% - 20px);
  }
}
</style>
</head>
<body>

<h1>Responsive Modal Images</h1>

<div class="gallery">
  <img src="img_5terre.jpg" alt="Cinque Terre" class="gallery-item">
  <img src="img_forest.jpg" alt="Forest" class="gallery-item">
  <img src="img_lights.jpg" alt="Northern Lights" class="gallery-item">
  <img src="img_mountains.jpg" alt="Mountains" class="gallery-item">
</div>

<div id="modal1" class="modal">
  <span class="close">&times;</span>
  <img src="img_5terre.jpg" alt="Cinque Terre" class="modal-content">
  <div class="caption"></div>
</div>

<div id="modal2" class="modal">
  <span class="close">&times;</span>
  <img src="img_forest.jpg" alt="Forest" class="modal-content">
  <div class="caption"></div>
</div>

<div id="modal3" class="modal">
  <span class="close">&times;</span>
  <img src="img_lights.jpg" alt="Northern Lights" class="modal-content">
  <div class="caption"></div>
</div>

<div id="modal4" class="modal">
  <span class="close">&times;</span>
  <img src="img_mountains.jpg" alt="Mountains" class="modal-content">
  <div class="caption"></div>
</div>

<script>
function openModal(modalId, caption) {
  let modal = document.getElementById(modalId);
  modal.style.display = "flex";
  modal.classList.add("show");
  let message = modal.querySelector(".caption");
  message.innerText = caption;
}

function closeModal(modalId) {
  let modal = document.getElementById(modalId);
  modal.classList.remove("show");
  setTimeout(function () {
    modal.style.display = "none";
    modal.querySelector(".caption").innerText = "";
  }, 300);
}
</script>

</body>
</html>
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    配置浏览器推送通知
    Chrome (安卓)
    1. 轻敲地址栏旁的锁形图标。
    2. 轻敲权限 → 通知。
    3. 调整你的偏好。
    Chrome (台式电脑)
    1. 点击地址栏中的挂锁图标。
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